<div class="form-group">
			<label class="col-sm-2 control-label">上传图片</label>
			<div class="col-sm-10">
				<div class="input-group">
					<input type="text" rel-action="preview" rel-sign="sign" class="form-control" name="file" placeholder="请选择上传图片" autocomplete="off">
					<span class="input-group-btn">
						<button type="button" rel-action="dialog-upload" rel-url="{:U('Upload/file',array('sign'=>'sign'))}" class="btn btn-info">上传图片</button>
					</span>
				</div>
			</div>
		</div>